Shuttle



C. K. SUYDAM.

SHUTTLE. AP'PLicAnou FILED JULDY 8,1988.

Patented Mar. 14, 1922.

UNITED STATES PATENT orncs.

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' Specification of Letters Patent.

Patented Mar. .14, 1922.

Application filed July 8, 1918. Serial No. 243,783.

To all whom it may concern:

Be it known that I, CLARENCE K. sUY- DAM, a citizen of the United States, and a thereof, which will enable others skilled in the art to which it 'appertains to make and use the same, reference being had to the accompanying drawings, and to the reference numerals marked thereon, which form part of this specification.

1 My present invention relates to loom shutt es. a

The purpose of thiscinvention is to provide an improved loom shuttle and one whichis simple and economical in constructionand very durable and efiicient in operation.

Loom shuttles are almost universally constructed of wood. This is the most practical material to form the shuttle from and is found by long experience to be practically .the only material that will give the proper contact or friction between the shuttle and the binders and the backs of the shuttle boxes to hold the shuttle'from rebounding from the shuttle boxes. 'On the other hand the wood is a constant source of trouble in the shuttle in that the slope or curve at both ends of the shuttle where the shuttle tapers from full siz'e'to the metalatip necessarily cuts across the grain of the wood. This nose or slanting portion of the shuttle at the same time is the very portion which is brought into contact with the warpof the loom under considerable tension, Under these circumstances the shuttle sooner or later wears rough through the action of the warp en aging the ends of the fiber of the wood. s soon as the shuttle has even slightly roughened it needs to be smoothed down by whittling'or sandpaperin and this process has to be continued as o n as the shuttle wears rough. If the shuttle is not thus taken care of as soon as a small part of the shuttle has worn rough it will catch more positively. in the warp and brush up a larger splinter of wood in the shuttle and often break a number. of, threads of the warp. The brushing up of the deep splinteruse entirely. The breaking of the ends of warp makes a noticeable defect in the cloth resultin n a great waste of material and time. hlS roughening of the shuttles occurs mostly on the top of the shuttle where the tension of the warp against the shuttle 1s more pronounced, although there is a little tendency for the bottom of the shuttle to rou hen. The sides of the shuttle are not subject to being roughened in this way and practically receive no wear from their contact with the binders. This roughening or splinteri'ng of the top of the shuttle 1s a constant source of trouble in the operation of the loom and is the element that limits the life of the shuttle.

a The above mentioned tendency of shuttles to splinter or roughen has made it necessary to form the shuttles from only the most close grained wood. In practice shuttles are made only from dog wood as no other wood res sts the tendency to roughen for a sufiicient tlme to make it worth while to make shuttles of other woods.

The main purpose of my invention is to provide a loom shuttle which will overcome the above named disadvantages inherent'in a wood shuttle and at "the same time retaintheadvantages incident to forming the body of the shuttle from wood and particularly:

the advantages of having the sides of the shuttle of wood.

A further purpose of my invention is to provide a shuttle having sides of wood, but

its upper and also preferably its lower surface of a hard, tou h, grainless and practically frictionless fi er wherebythe shuttle may be used for an indefinite time without A further purpose of my invention is to I provide a loom shuttle of the-general ty outlined that will be provided with special features and combinations of parts pecuharly well adapted to meetthe requirements. Further purposes and advantages of my invention will a pear from'the specification and'claims hereinafter set 01th.-

. Fig. 1 is a erspective view of a loom shuttle embodying my invention.

Fig. 2 is a side elevation thereof.

Fig. 3 is a bottom plan view thereof.-

Figs. 4, 5 and 6 are cross-sectional views on lines 4-4, 5--5 and 6-6 respectively of width of the shuttle so that the wood of the I body extends to and forms the sides 14 of the shuttle against which the binders and I the backs of the shuttle boxes engage in the usual reliable way to form a tight grip upon the shuttle without danger of the shuttle rebounding and without preceptible wear upon the shuttle. The body 10 is provided with the desired chamber 15 to receive the bobbin (not shown). The wooden body also is provided with the usual. means for sup-- porting the spindle upon which the bobbin is to be placed. In the body are also placed the usual-tension means not relevant to this invention and so not further. described.

The bod 10 is of a thickness from top to bottom a little less than the thickness of the.

to facing 11 and bottom facing 12 composed o a strip or layer of hard, tough and grainless fiber adapted to pass by the warp and reed with a minimum amount of friction.

Preferably these surfacing strips will be shaped to substantially the shape of the top and bottom respectively of the completed shuttle before the strips are placed upon the wood body and are trimmed down and smoothed and finished off to the proper exact shape and smoothness of surface after the surfacing strips are on the shuttle.

The said surfacing strips will be securely and permanently secured to the wooden body of the. shuttle as by strong glue or other adhesive applied to the contacting surfaces and the parts firmly held together until'set. Preferably also dowel pins 17 will be used especially along the central part of the side edges of the top facing strip 11 where -the material of sald strip is adjacent to the chamber 15 of the shuttle and so very narrow. In this way these narrow portions of the facing strips are further strengthened against side strain. Preferably also rivets or other headed metallic members 18 will extend through both facing strips and the wooden body at the nose or near the outer surfacing strips are held firmly to the wooden body at the point where they'have been bent down most to conform to the slope of the ends of the shuttle. As shown in.Fig. 6 the rivet 18 may extend through an opening provided in the tang 19 of the metal tip thus serving as further means of holding the metal tips to the shuttle.

The facing strips 11 and 12 it will be noticed thoroughly cover the top and bottom respectively of the shuttle and extend to the corners or side edges of the top and bottom and thus form the surface which comes into contact with the warp at the varying positions of the shed. It will thus be seen that the facing strips forthe entire distance from the metal end tips form the Fig. 5 the edges of the fiber facing strips form the corners of the shuttle and are slightly rounded in the usual way, but still take all the wear from the warp. Through the central portion of the shuttle as shown in Fig. 4 the facing strips come to the four corners of the shuttle with only a trifling rounding of the corner. It will thus be seen that no part of the wood of the shuttle is exposed to the roughening or splintering action by contact with the warp, but that the said fiber facing strips form a complete and the only contact with the warp aside from the light contact that may be made by the metal end tips in the usual way.

The strips of fiber used will be of sufficient thickness to obtain the necessary strength, rigidity and durability. I find from experience, however, that the fiber even after long use shows no trace whatever of wearing rough or splintering. Therefore the layers do not need to be thick as there is no occasion for continual trimming or smoothing down as is the case with wooden shuttles.

The fiber top and bottom facing strips being relatively thin do not extend far enough down on the sides of the shuttles to prevent the wooden sides 1 1 being the only part of the shuttle that will come into contact with the metal binders of the shuttle boxes and the backs of the shuttle boxes. In this way my shuttle has all of the advantages of firm and reliable contact with the binders in the shuttle boxes and the backs of the shuttle boxes incident to an all-wood shuttle.

As. there is no tendency whatever for the fiber of the facing strips to roughen or splinter from contact with the warp it will be seen that the operator can keep a set of shuttles in use indefinitely without having to change to repair or replace and without the loss of time incident to watching wooden shuttles. As the splintering of the wood of the shuttle in contact with the warp has been the main cause of shuttles wearin out and being discarded it will be seen t at my shuttle will last a long time instead of being very shortlived as has been the case with wooden shuttles. This will obviously tend to economy in weaving in that the shuttle may last for years instead of only for months or possibly onl for a week or two.

urthermore a shuttle embodying my invention may have its wooden body formed of .any one of several common hard woods which will answer satisfactorily to form the body and the wood contact at the sides of the shuttle. The expensive dog wood is no longer required as the wood does not form any part of the surface which comes in contact with the warp.

The fiber used for the top and bottom facing strips may be any of the Well-known compounds or compositions generally known in the trade as fiber or vulcanized fiber that are sufficiently hard, tough, durable and particularly grainless to answer the purpose in hand.

WhatI claim as new and desire to secure by Letters Patent is:

hard, tough, grainless fiber extending to the sides and forming the upper edges of the shuttle.

2. A loom shuttle having wooden sides of suflicient continuous height to be the only parts engaged by the binders or by the opposite part of the backs of the shuttle boxes and having its top and bottom faced with a layer of hard, tough, grainless fiber extending to the sides and forming the four edges of the shuttle.

3. A loom shuttle having a one-piece wooden body forming the opposite sides thereof and having its top faced with a layer of hard, tough, grainless fiber, said wooden sides being of sufiicient uninterrupted height to be the only parts engaged by the binders or by the opposite part of the backs of the shuttle boxes.

l. A loom shuttle having a continuous wooden body forming the opposite sides thereof and having its top and bottom faced with layers of hard, tough, grainless fiber, said wooden sides being of sufficient height to be the only parts engaged by the binders or by the opposite part of the backs of the shuttle boxes.

5. A loom shuttle having a front wooden side of sufficient continuous height to be the only part engaged by the binders and havin its top and bottom faced with a layer 0 hard, tough, grainless fiber extending to the sides and forming the four edges 01' the shuttle.

In witness whereof I have afiixed my signature, this 28th day of June 1918.

CLARENCE K. SUYDAM. 

